Analogize the multiple
temperature projections in Rowlands, et al., Figure 1, that represent the ignorance widths of the parameter sets, onto the single hindcast line of SPM.5.
The paper then compares the global surface temperature data (with these three influences both included and removed) to the envelope of climate model
temperature projections in both the 2001 and 2007 IPCC reports (Figure 2).
As I said in # 626, Hansen et al. plan to apply their method to
temperature projections in a future paper, so we'll be able to compare to their results at some point.
Not exact matches
For a start, observational records are now roughly five years longer, and the global
temperature increase over this period has been largely consistent with IPCC
projections of greenhouse gas — driven warming made
in previous reports dating back to 1990.
IPCC estimates, using the best and longest record available, show that the difference between the 1986 - 2005 global average
temperature value used
in most of the Panel's
projections, and pre-industrial global average
temperature, is 0.61 °C (0.55 - 0.67).
Combining the asylum - application data with
projections of future warming, the researchers found that an increase of average global
temperatures of 1.8 °C — an optimistic scenario
in which carbon emissions flatten globally
in the next few decades and then decline — would increase applications by 28 percent by 2100, translating into 98,000 extra applications to the EU each year.
A similar adjustment can be applied to some of the
temperature change
projections in the most recent IPCC report.
Climate change
projections that look ahead one or two centuries show a rapid rise
in temperature and sea level, but say little about the longer picture.
Having established that equation, predicting the beetle's expansion into any particular region was just a matter of plugging
in the IPCC's
temperature projections and crunching the numbers.
The researchers then used a mathematical model that combined the conflict data with
temperature and rainfall
projections through 2050 to come up with predictions about the likelihood of climate - related violence
in the future.
The recent slowdown
in global warming has brought into question the reliability of climate model
projections of future
temperature change and has led to a vigorous debate over whether this slowdown is the result of naturally occurring, internal variability or forcing external to Earth's climate system.
The changes shown
in these maps compare an average of the model
projections to the average
temperature and precipitation benchmarks observed from 1971 - 2000.
Under midrange
projections for economic growth and technological change, the planet's average surface
temperature in 2050 will be about two degrees Celsius (3.6 degrees Fahrenheit) higher than its preindustrial value.
They then used a crop model to simulate daily water requirements for various crops, driven by the researchers» modeled
projections of precipitation and
temperature, and compared these requirements with the amount of water predicted to be available for irrigation
in a particular basin through the year 2050.
The ensembles are remarkably consistent
in their
projections of
temperature.
Projections indicate the
temperatures could rise as much as 11 °F by century's end if greenhouse gas emissions aren't slowed and that the rate of warming could reach levels unseen
in 1,000 years by 2030s.
Li, T., R. M. Horton, and P. L. Kinney, 2013:
Projections of seasonal patterns
in temperature - related deaths for Manhattan, New York.
Projections indicate that for every 1.8 °F further rise
in temperature — and the western U.S. could see average
temperatures rise by up to 9 °F by 2100 — there could be a quadrupling
in the area burned each year
in the western U.S..
Borodina, A., Fischer, E. M. & Knutti, R. Emergent constraints
in climate
projections: a case study of changes
in high - latitude
temperature variability.
Analysis of simple models and intercomparisons of AOGCM responses to idealised forcing scenarios suggest that, for most scenarios over the coming decades, errors
in large - scale
temperature projections are likely to increase
in proportion to the magnitude of the overall response.
included
in the model
projections and is there a potential for a more rapid global
temperature increase after hypothetical stopping of air pollution and subsequent cleaning of air?
Global climate
projections from the Intergovernmental Panel on Climate Change, showing
temperature and precipitation trends for two different future scenarios, as described
in the Climate chapter of this assessment (IPCC 2014a).
In end - of - century projections, summers have the largest increases in average temperature: 6.5 °F (3.6 °C) for the stabilization emission scenario, 11.8 °F (6.6 °C) for the business - as - usual emission scenari
In end - of - century
projections, summers have the largest increases
in average temperature: 6.5 °F (3.6 °C) for the stabilization emission scenario, 11.8 °F (6.6 °C) for the business - as - usual emission scenari
in average
temperature: 6.5 °F (3.6 °C) for the stabilization emission scenario, 11.8 °F (6.6 °C) for the business - as - usual emission scenario.
Average daily minimum and maximum
temperatures increase
in the mid-century and end - of - century
projections for both stabilization and business - as - usual emission scenarios (Figure 2 - 10 shows output for annual average daily maximum
temperature).
«
In this post we will evaluate this contrarian claim by comparing the global surface
temperature projections from each of the first four IPCC reports to the subsequent observed
temperature changes.
The model accounts for the dynamic feedbacks that occur naturally
in the Earth's climate system —
temperature projections determine the likelihood of extreme weather events, which
in turn influence human behavior.
In projecting climate variables such as
temperature, precipitation, and humidity, there is generally a tradeoff between (a) the ability to produce high - resolution
projections needed to inform local decisions and model local responses, and (b) the ability to sample uncertainty.
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• Model number: PCH - 1000 series • CPU: ARM ® Cortex ™ - A9 core (4 core) • GPU: SGX543MP4 + • Main memory: 512 MB • VRAM: 128 MB • External Dimensions: Approx. 182.0 x 18.6 x 83.5 mm (width x height x depth)(tentative, excludes largest
projection) • Weight Approx: 279g (3G / Wi - Fi model), 260g (Wi - Fi model) • Screen: 5 inches (16:9), 960 x 544, Approx. 16 million colors, OLED, Multi touch screen (capacitive type) • Rear touch pad: Multi touch pad (capacitive type) • Cameras: Front camera, Rear camera; Frame rate: [email protected] × 240 (QVGA), [email protected] × 480 (VGA); Resolution: Up to 640 × 480 (VGA) • Sound: Built -
in stereo speakers, built - in microphone • Sensors: Six - axis motion sensing system (three - axis gyroscope, three - axis accelerometer), Threeaxis electronic compass • Location: Built - in GPS (3G / Wi - Fi model only), Wi - Fi location service support • Keys / Switches: PS button, power button, directional buttons (Up / Down / Right / Left), action buttons (Triangle, Circle, Cross, Square), shoulder buttons (Right / Left), right stick, left stick, START button, SELECT button, volume buttons (+ / --RRB- • Wireless communications: Mobile network connectivity (3G / Wi - Fi model only), 3G modem (data communication): HSDPA / HSUPA * specification for Japanese region, IEEE 802.11 b / g / n (n = 1 × 1)(Wi - Fi)(Infrastructure mode / Ad - hoc mode), Bluetooth ® 2.1 + EDR (A2DP / AVRCP / HSP) • Slots / Ports: PlayStation ® Vita card slot, memory card slot, SIM card slot (3G / Wi - Fi model only), multi-use port (for USB data communication, DC IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
in stereo speakers, built - in microphone • Sensors: Six - axis motion sensing system (three - axis gyroscope, three - axis accelerometer), Threeaxis electronic compass • Location: Built - in GPS (3G / Wi - Fi model only), Wi - Fi location service support • Keys / Switches: PS button, power button, directional buttons (Up / Down / Right / Left), action buttons (Triangle, Circle, Cross, Square), shoulder buttons (Right / Left), right stick, left stick, START button, SELECT button, volume buttons (+ / --RRB- • Wireless communications: Mobile network connectivity (3G / Wi - Fi model only), 3G modem (data communication): HSDPA / HSUPA * specification for Japanese region, IEEE 802.11 b / g / n (n = 1 × 1)(Wi - Fi)(Infrastructure mode / Ad - hoc mode), Bluetooth ® 2.1 + EDR (A2DP / AVRCP / HSP) • Slots / Ports: PlayStation ® Vita card slot, memory card slot, SIM card slot (3G / Wi - Fi model only), multi-use port (for USB data communication, DC IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
in stereo speakers, built -
in microphone • Sensors: Six - axis motion sensing system (three - axis gyroscope, three - axis accelerometer), Threeaxis electronic compass • Location: Built - in GPS (3G / Wi - Fi model only), Wi - Fi location service support • Keys / Switches: PS button, power button, directional buttons (Up / Down / Right / Left), action buttons (Triangle, Circle, Cross, Square), shoulder buttons (Right / Left), right stick, left stick, START button, SELECT button, volume buttons (+ / --RRB- • Wireless communications: Mobile network connectivity (3G / Wi - Fi model only), 3G modem (data communication): HSDPA / HSUPA * specification for Japanese region, IEEE 802.11 b / g / n (n = 1 × 1)(Wi - Fi)(Infrastructure mode / Ad - hoc mode), Bluetooth ® 2.1 + EDR (A2DP / AVRCP / HSP) • Slots / Ports: PlayStation ® Vita card slot, memory card slot, SIM card slot (3G / Wi - Fi model only), multi-use port (for USB data communication, DC IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
in microphone • Sensors: Six - axis motion sensing system (three - axis gyroscope, three - axis accelerometer), Threeaxis electronic compass • Location: Built - in GPS (3G / Wi - Fi model only), Wi - Fi location service support • Keys / Switches: PS button, power button, directional buttons (Up / Down / Right / Left), action buttons (Triangle, Circle, Cross, Square), shoulder buttons (Right / Left), right stick, left stick, START button, SELECT button, volume buttons (+ / --RRB- • Wireless communications: Mobile network connectivity (3G / Wi - Fi model only), 3G modem (data communication): HSDPA / HSUPA * specification for Japanese region, IEEE 802.11 b / g / n (n = 1 × 1)(Wi - Fi)(Infrastructure mode / Ad - hoc mode), Bluetooth ® 2.1 + EDR (A2DP / AVRCP / HSP) • Slots / Ports: PlayStation ® Vita card slot, memory card slot, SIM card slot (3G / Wi - Fi model only), multi-use port (for USB data communication, DC IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
in microphone • Sensors: Six - axis motion sensing system (three - axis gyroscope, three - axis accelerometer), Threeaxis electronic compass • Location: Built -
in GPS (3G / Wi - Fi model only), Wi - Fi location service support • Keys / Switches: PS button, power button, directional buttons (Up / Down / Right / Left), action buttons (Triangle, Circle, Cross, Square), shoulder buttons (Right / Left), right stick, left stick, START button, SELECT button, volume buttons (+ / --RRB- • Wireless communications: Mobile network connectivity (3G / Wi - Fi model only), 3G modem (data communication): HSDPA / HSUPA * specification for Japanese region, IEEE 802.11 b / g / n (n = 1 × 1)(Wi - Fi)(Infrastructure mode / Ad - hoc mode), Bluetooth ® 2.1 + EDR (A2DP / AVRCP / HSP) • Slots / Ports: PlayStation ® Vita card slot, memory card slot, SIM card slot (3G / Wi - Fi model only), multi-use port (for USB data communication, DC IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
in GPS (3G / Wi - Fi model only), Wi - Fi location service support • Keys / Switches: PS button, power button, directional buttons (Up / Down / Right / Left), action buttons (Triangle, Circle, Cross, Square), shoulder buttons (Right / Left), right stick, left stick, START button, SELECT button, volume buttons (+ / --RRB- • Wireless communications: Mobile network connectivity (3G / Wi - Fi model only), 3G modem (data communication): HSDPA / HSUPA * specification for Japanese region, IEEE 802.11 b / g / n (n = 1 × 1)(Wi - Fi)(Infrastructure mode / Ad - hoc mode), Bluetooth ® 2.1 + EDR (A2DP / AVRCP / HSP) • Slots / Ports: PlayStation ® Vita card slot, memory card slot, SIM card slot (3G / Wi - Fi model only), multi-use port (for USB data communication, DC IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
in GPS (3G / Wi - Fi model only), Wi - Fi location service support • Keys / Switches: PS button, power button, directional buttons (Up / Down / Right / Left), action buttons (Triangle, Circle, Cross, Square), shoulder buttons (Right / Left), right stick, left stick, START button, SELECT button, volume buttons (+ / --RRB- • Wireless communications: Mobile network connectivity (3G / Wi - Fi model only), 3G modem (data communication): HSDPA / HSUPA * specification for Japanese region, IEEE 802.11 b / g / n (n = 1 × 1)(Wi - Fi)(Infrastructure mode / Ad - hoc mode), Bluetooth ® 2.1 + EDR (A2DP / AVRCP / HSP) • Slots / Ports: PlayStation ® Vita card slot, memory card slot, SIM card slot (3G / Wi - Fi model only), multi-use port (for USB data communication, DC
IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
IN, Audio [Stereo Out / Mono In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
IN, Audio [Stereo Out / Mono
In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
In], Serial data communication), headset jack (Stereo mini jack)(for Audio [Stereo Out / Mono
In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
In]-RRB-, accessory port • Power: Built - In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
In]-RRB-, accessory port • Power: Built -
In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM
In Lithium - ion Battery: DC3.7 V 2200mA, AC adaptor: DC 5V • Operating environment
temperature: 5 - 35 degrees Celsius • Supported AV content format: Music — MP3 MPEG - 1 / 2 Audio Layer 3, MP4 (MPEG - 4 AAC), WAVE (Linear PCM).
2017 Paper — Assessing
temperature pattern
projections made
in 1989 Ronald J. Stouffer * and Syukuro Manabe 2
p.s. To compare to Vahrenholt's forecast, here's a comparison of earlier model
projections of global
temperature for the IPCC (prediction with the CMIP3 model ensemble used
in the 4th IPCC assessment report, published
in 2007) with the actual changes
in temperature (the four colored curves).
What is shockingly ill - advised to me is that the Pielke and McIntyre
projections both required,
in order to fit with their hoped for story line, that the adjustments not only affect the period from 1945 to 1960, but also extend beyond that into the late 90s,
in order to level the more recent
temperature increases so as to both make the rate appear less dramatic and the amount of recent, CO2 forced warming less of a concern.
None of the large scale models used for the IPCC
projections have been calibrated on the last millennium — because of uncertainty
in the
temperatures and uncertainties
in the forcings.
COMMENTARY: Assessing
temperature pattern
projections made
in 1989 Ronald J. Stouffer * and Syukuro Manabe https://www.nature.com/articles/nclimate3224.epd Full access url @ https://goo.gl/hgsy6o
Analysis of simple models and intercomparisons of AOGCM responses to idealised forcing scenarios suggest that, for most scenarios over the coming decades, errors
in large - scale
temperature projections are likely to increase
in proportion to the magnitude of the overall response.
None of this «oh, natural variation and cool spells are expected to interrupt the warming (for more than a year or two)» crap... that's not what has been predicted, and if
temperatures do not rebound
in a big way soon, AGW
projections will continue to look foolish.
that's not what has been predicted, and if
temperatures do not rebound
in a big way soon, AGW
projections will continue to look foolish.
Does this prediction and the confidence with which it is made «The quasi-regularity of some natural climate forcing mechanisms, combined with knowledge of human - made forcings, allows
projection of near - term global
temperature trends with reasonably high confidence», reflect the consensus of climate scientists,
in your opinion?
I particularly enjoyed the slides that, when combined (1) provided an overview of hotter and cooler CO2 molecules as it relates to how they are seen from outer space and from profile — because this will make it easier for me to explain this process to others; (2) walked through the volcanic and solar activity vs assigning importance to CO2 changes — because this another way to help make it clearer, too, but
in another way; (3) discussed CO2 induced warming and ocean rise vs different choices we might make — because this helps point out why every day's delay matters; and (4) showed Figure 1 from William Nordhaus» «Strategies for Control of Carbon Dioxide» and then super-imposed upon that the global mean
temperature in colors showing pre-paper and post-paper periods — because this helps to show just how far back it was possible to make reasoned
projections without the aid of a more nuanced and modern understanding.
The IPCC Third Assessment Report's (TAR's)
projections for methane atmospheric concentrations, carbon dioxide emissions and atmospheric concentrations, and resultant
temperature increases constitute the greatest fraud
in the history of environmental science.
«
In this post we will evaluate this contrarian claim by comparing the global surface
temperature projections from each of the first four IPCC reports to the subsequent observed
temperature changes.
Do you think that
in the same way that the Solanki et al paper on solar sunspot reconstructions had a specific statement that their results did not contradict ideas of strong greenhouse warming
in recent decades, this (the fact that climate sensitivity
projections are not best estimates of possible future actual
temperature increases) should be clearly noted
in media releases put out by scientists when reporting climate sensitivity studies?
Is there a probability / odds level «threshold» if - you - will, whereby if the odds of «x» number of «y» years of observed
temperature anomaly all occurring outside the confidence interval for a model's
temperature projection, that it would be time for a paradigm shift
in the particulars of the model, moreso than the normal tweaks?
In the end, I would hypothesize that the result of the freeing of data and code will necessarily lead to a more robust understanding of scientific uncertainties, which may have the perverse effect of making the future less clear, i.e., because it will result in larger error bars around observed temperature trends which will carry through into the projection
In the end, I would hypothesize that the result of the freeing of data and code will necessarily lead to a more robust understanding of scientific uncertainties, which may have the perverse effect of making the future less clear, i.e., because it will result
in larger error bars around observed temperature trends which will carry through into the projection
in larger error bars around observed
temperature trends which will carry through into the
projections.
But
in some way it is... it's economics... a old debate is resurfacing, as far as I can tell, the debate abut that the
projections (of the
temperature) being false or just bad sins (IPCC) they build on unrealistic developments for the poor part of the world (especially for the lower
temperature boarder).
In your graph of
temperature measurements vs model
projections, you discuss Scenario B, while it appears that Scenario C is almost identical to HadCrut3 and GisTemp.
Then some climate modelers even have the audacity to publish regional «
projections» saying that the Colorado River will dry up
in 50 - 100 years, or the rainfall and
temperature somewhere else will change this way or that.
The main cause of the spread
in the widely quoted 1.5 to 5.8 C range of
temperature projections for 2100
in IPCC is actually the different scenarios used.
Just as I am sure that somewhere
in the range of the IPCC
projections (or «forecasts» if you prefer), lies the true course of
temperature during the next 20 - 50 years or so (and maybe longer).
Wouldn't it be better if we put our efforts on accurate shorter term
temperature projections, say what will happen
in 6 months no more than a few years from now, check the models and brag about their accuracy or correct their failures, if the models are continuously correct all contrarian arguments die.